6490 1991 NR2 3 agosto, 201715 septiembre, 2017 aaznar Mars-Crossing Asteroids Lightcurves Number: 6490 Designation: 1991 NR2 Name: – First Date: 2017/07/24 Points: 130 P1: 4.463 P1 error: 0.001 Max. Ampl.: 0.33